Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. Antenna switch diversity circuitry, comprising: a first switch connectable to a first transmitter, a first receiver, and a second receiver; a second switch connectable to a second transmitter, a third receiver, and a fourth receiver; a third switch directly connected to the first switch, the second switch, a first antenna, and a second antenna; and a fourth switch directly connected to the first switch, the second switch, a third antenna, and a fourth antenna.
Antenna switch diversity circuitry is designed to improve wireless communication reliability by dynamically selecting optimal antennas for transmission and reception. The system addresses challenges in maintaining signal quality in environments with interference or multipath fading by providing multiple antenna options for both transmitters and receivers. The circuitry includes four switches that manage connections between multiple antennas and communication devices. A first switch connects to a first transmitter and two receivers, while a second switch connects to a second transmitter and two additional receivers. A third switch directly links the first and second switches to a first and second antenna, enabling flexible routing of signals. Similarly, a fourth switch connects the first and second switches to a third and fourth antenna, further expanding coverage options. This configuration allows the system to dynamically allocate antennas to transmitters and receivers based on signal conditions, improving overall communication performance. The direct connections between switches ensure low-loss signal paths and rapid reconfiguration, enhancing efficiency in diverse wireless environments.
2. The antenna switch diversity circuitry of claim 1 , wherein: the first switch is configured to be controlled by a first control signal; the second switch is configured to be controlled by the first control signal; the third switch is configured to be controlled by a second control signal; and the fourth switch is configured to be controlled by a third control signal.
Antenna switch diversity circuitry is used in wireless communication systems to improve signal reception by selecting the best antenna from multiple available antennas. A common challenge is efficiently managing the switching between antennas to optimize performance while minimizing complexity and power consumption. The circuitry includes multiple switches that control connections between antennas and a receiver or transmitter. The first and second switches are controlled by a first control signal, allowing them to operate in tandem to select a primary antenna path. The third switch is controlled by a second control signal, enabling independent selection of an auxiliary antenna path. The fourth switch is controlled by a third control signal, providing additional flexibility in routing signals. This configuration allows for dynamic antenna selection based on signal quality, interference, or other performance metrics, improving reliability and efficiency in wireless communication systems. The independent control of switches ensures precise and adaptive antenna switching, enhancing overall system performance.
3. The antenna switch diversity circuitry of claim 2 , wherein the first control signal controls the first switch and the second switch in a manner so as to prevent a signal from the first transmitter and a signal from the second transmitter from being conveyed through a same switch.
This antenna system has a switch that makes sure signals from two different transmitters never try to go through the same part of the switch at the same time. This prevents signal interference.
4. The antenna switch diversity circuitry of claim 2 , wherein the first control signal controls the first switch and the second switch in a manner so as to reduce a production of an intermodulation distortion signal by a signal from the first transmitter and a signal from the second transmitter.
This invention relates to antenna switch diversity circuitry designed to mitigate intermodulation distortion (IMD) in wireless communication systems. The circuitry includes multiple switches and control logic that manage signal routing between multiple transmitters and antennas. The problem addressed is the generation of IMD when signals from two or more transmitters interact within the circuitry, degrading signal quality and performance. The circuitry comprises at least two switches, each connected to a respective transmitter and antenna. A control signal dynamically adjusts the switches to minimize IMD by preventing simultaneous signal paths that could cause interference. The control logic ensures that when one transmitter is active, the corresponding switch routes its signal to the antenna while isolating the other transmitter to prevent signal mixing. This selective switching reduces the likelihood of IMD generation, improving signal integrity and system efficiency. The solution is particularly useful in multi-transmitter systems, such as those in mobile devices or base stations, where multiple frequency bands or communication standards are used simultaneously. By intelligently managing signal paths, the circuitry enhances performance without requiring additional hardware, making it a cost-effective solution for modern wireless devices.
5. The antenna switch diversity circuitry of claim 4 , wherein: the signal from the first transmitter has a first carrier frequency; the signal from the second transmitter has a second carrier frequency; and the second carrier frequency is different from the first carrier frequency.
This invention relates to antenna switch diversity circuitry used in wireless communication systems to improve signal reception and transmission. The problem addressed is the need to efficiently manage multiple signals from different transmitters operating at distinct carrier frequencies. The circuitry includes a switching mechanism that selectively connects one or more antennas to different transmitters or receivers based on signal quality or other performance metrics. The invention specifically describes a configuration where the first transmitter operates at a first carrier frequency and the second transmitter operates at a second carrier frequency, with the two frequencies being different. This allows the system to handle multiple frequency bands simultaneously, enhancing flexibility and performance in multi-band wireless communication environments. The circuitry may also include signal processing components to optimize signal routing and minimize interference between the different frequency bands. The overall goal is to improve signal reliability and throughput in systems where multiple frequency bands are used, such as in modern cellular networks or other multi-band communication systems.
6. The antenna switch diversity circuitry of claim 1 , wherein: the first transmitter is for a first type of broadband cellular network technology; and the second transmitter is for a second type of broadband cellular network technology.
This invention relates to antenna switch diversity circuitry for wireless communication devices, specifically addressing the challenge of efficiently managing multiple broadband cellular network technologies within a single device. The circuitry includes at least two transmitters, each designed for a different type of broadband cellular network technology, such as LTE, 5G, or other wireless standards. The system dynamically switches between antennas to optimize signal transmission and reception, improving performance and reliability. The circuitry ensures that each transmitter operates on its designated frequency band without interference, allowing seamless switching between different network technologies. This design enhances signal quality, reduces latency, and supports simultaneous connectivity to multiple networks, which is crucial for modern wireless devices that must support diverse communication standards. The invention provides a flexible and efficient solution for handling the increasing complexity of multi-technology wireless communication environments.
7. The antenna switch diversity circuitry of claim 6 , wherein: the first type of broadband cellular network technology complies with the International Mobile Telecommunications Advanced specification of the International Telecommunication Union; and the second type of broadband cellular network technology complies with the IMT-2020 standard of the International Telecommunication Union.
This technical summary describes antenna switch diversity circuitry designed for broadband cellular network compatibility. The circuitry supports multiple types of broadband cellular network technologies, specifically those adhering to the International Mobile Telecommunications Advanced (IMT-Advanced) specification and the IMT-2020 standard of the International Telecommunication Union. The IMT-Advanced specification covers advanced 4G LTE and LTE-Advanced systems, while the IMT-2020 standard pertains to 5G networks. The circuitry includes a switching mechanism that dynamically selects between antennas to optimize signal reception and transmission based on network conditions. This ensures seamless connectivity across different generations of cellular technology, improving reliability and performance in diverse network environments. The design addresses the challenge of maintaining high-quality communication as users transition between 4G and 5G networks, which operate at different frequencies and employ varying modulation schemes. By integrating support for both standards, the circuitry enables devices to leverage the benefits of each technology while minimizing disruptions during handoffs. The solution is particularly valuable for mobile devices that require robust and adaptable connectivity in regions with overlapping 4G and 5G coverage.
8. The antenna switch diversity circuitry of claim 1 , wherein: the first receiver is for a first type of broadband cellular network technology; the second receiver is for the first type of broadband cellular network technology; the third receiver is for a second type of broadband cellular network technology; and the fourth receiver is for the second type of broadband cellular network technology.
The invention relates to antenna switch diversity circuitry designed for multi-technology cellular networks. The problem addressed is the need for efficient signal reception across different broadband cellular technologies, particularly in devices requiring multiple receivers to handle simultaneous connections or improved signal diversity. The circuitry includes four receivers, each connected to an antenna through a switching mechanism. Two of the receivers are dedicated to a first type of broadband cellular network technology, such as 4G LTE, while the other two are dedicated to a second type, such as 5G NR. This configuration allows the device to maintain separate connections or improve signal reliability by switching between antennas for each technology. The switching mechanism dynamically selects the optimal antenna for each receiver based on signal quality, ensuring robust performance across both network types. The system enhances coverage and data throughput by leveraging diversity techniques while supporting simultaneous operation of multiple cellular technologies.
9. The antenna switch diversity circuitry of claim 8 , wherein: the first receiver is a primary receiver for the first type of broadband cellular network technology; the second receiver is a diversity receiver for the first type of broadband cellular network technology; the third receiver is a primary receiver for the second type of broadband cellular network technology; and the fourth receiver is a diversity receiver for the second type of broadband cellular network technology.
This invention relates to antenna switch diversity circuitry for wireless communication devices, specifically addressing the need for improved signal reception in multi-technology broadband cellular networks. The circuitry includes multiple receivers and antennas to enhance signal diversity and reliability. The system comprises at least four receivers, each assigned to a specific role in supporting two different broadband cellular network technologies. The first receiver acts as the primary receiver for the first type of broadband cellular network technology, while the second receiver serves as a diversity receiver for the same technology, improving signal quality and reducing interference. Similarly, the third receiver functions as the primary receiver for the second type of broadband cellular network technology, and the fourth receiver operates as its diversity receiver. The circuitry dynamically switches between antennas and receivers to optimize signal reception based on network conditions, ensuring robust connectivity across multiple technologies. This approach enhances performance in environments with varying signal strengths and interference levels, particularly in devices supporting both primary and diversity reception for dual broadband cellular technologies.
10. The antenna switch diversity circuitry of claim 8 , wherein: the first type of broadband cellular network technology complies with the International Mobile Telecommunications Advanced specification of the International Telecommunication Union; and the second type of broadband cellular network technology complies with the IMT-2020 standard of the International Telecommunication Union.
The invention relates to antenna switch diversity circuitry designed for broadband cellular network technologies. The circuitry addresses the challenge of efficiently managing multiple cellular network standards, particularly those defined by the International Telecommunication Union (ITU). The system includes a switch mechanism that selectively connects antennas to different network technologies, ensuring optimal performance across diverse communication standards. The circuitry supports at least two types of broadband cellular network technologies. The first type adheres to the International Mobile Telecommunications Advanced (IMT-Advanced) specification, which includes 4G LTE and similar high-speed mobile communication standards. The second type complies with the IMT-2020 standard, encompassing 5G and other next-generation cellular technologies. The switch mechanism dynamically routes signals between antennas and the appropriate network technology, improving signal quality and reducing interference. The circuitry may also include additional components, such as filters or amplifiers, to enhance signal integrity and coverage. By integrating support for both IMT-Advanced and IMT-2020 standards, the system enables seamless operation across different generations of cellular networks, ensuring compatibility and performance in modern wireless communication environments. This design is particularly useful for devices requiring multi-standard connectivity, such as smartphones, IoT devices, and base stations.
11. The antenna switch diversity circuitry of claim 1 , wherein at least one of the first switch, the second switch, the third switch, or the fourth switch comprises a crossover switch.
Antenna switch diversity circuitry is used in wireless communication systems to improve signal reception by dynamically selecting the best antenna or signal path. A common challenge is efficiently routing signals between multiple antennas and receivers while minimizing signal loss and interference. This circuitry includes multiple switches that control signal paths between antennas and receivers. At least one of these switches is a crossover switch, which allows for flexible signal routing by crossing signal paths. This design enables dynamic reconfiguration of the signal paths to optimize performance based on environmental conditions or signal quality. The crossover switch enhances adaptability by enabling non-linear signal routing, which can improve signal integrity and reduce interference. This configuration is particularly useful in multi-antenna systems where signal diversity and dynamic switching are critical for maintaining reliable communication. The use of a crossover switch in the antenna switch diversity circuitry provides greater flexibility in signal routing, improving overall system performance and reliability in wireless communication applications.
12. The antenna switch diversity circuitry of claim 11 , wherein: the crossover switch comprises a double pole, double throw switch; a first output associated with a first pole is connected to a second output associated with a second pole; and a second output associated with the first pole is connected to a first output associated with the second pole; wherein the double pole, double throw switch is configured to be controlled so that: in a first position: the first pole is connected to the first output associated with the first port; and the second pole is connected to the first output associated with the second port; and in a second position: the first pole is connected to the second output associated with the first pole; and the second pole is connected to the second output associated with the second pole.
Antenna switch diversity circuitry is used in wireless communication systems to improve signal reception by dynamically selecting between multiple antennas. A key challenge is efficiently routing signals between antennas and receivers to optimize performance. The invention addresses this by incorporating a double pole, double throw (DPDT) crossover switch in the antenna switch diversity circuitry. The DPDT switch has two poles, each with two outputs. The first output of the first pole is connected to the second output of the second pole, and the second output of the first pole is connected to the first output of the second pole. This configuration allows the switch to alternate between two distinct states. In the first state, the first pole connects to the first output of the first port, and the second pole connects to the first output of the second port. In the second state, the first pole connects to the second output of the first pole, and the second pole connects to the second output of the second pole. This arrangement enables flexible signal routing, improving antenna diversity and system reliability by dynamically reconfiguring connections between antennas and receivers. The crossover switch design ensures efficient signal switching while minimizing interference and signal loss.
13. The antenna switch diversity circuitry of claim 11 , wherein the crossover switch comprises: a first electronic switch connected between a first input port and a first output port; a second electronic switch connected between the first input port and a second output port; a third electronic switch connected between a second input port and the first output port; and a fourth electronic switch connected between the second input port and the second output port.
Antenna switch diversity circuitry is used in wireless communication systems to improve signal reception by dynamically selecting between multiple antennas. A common challenge is efficiently routing signals between antennas and receivers while minimizing signal loss and interference. The invention addresses this by implementing a crossover switch configuration within the antenna switch diversity circuitry. This configuration includes four electronic switches arranged to connect two input ports to two output ports. The first switch connects the first input port to the first output port, the second switch connects the first input port to the second output port, the third switch connects the second input port to the first output port, and the fourth switch connects the second input port to the second output port. This arrangement allows flexible signal routing between antennas and receivers, enabling dynamic selection of the best signal path. The crossover switch design ensures minimal signal degradation and interference, improving overall system performance in multi-antenna wireless communication systems.
14. The antenna switch diversity circuitry of claim 13 , wherein at least one of the first electronic switch, the second electronic switch, the third electronic switch, or the fourth electronic switch comprises a complementary metal-oxide-semiconductor field-effect transistor switch.
The invention relates to antenna switch diversity circuitry used in wireless communication systems to improve signal reception by dynamically selecting the best antenna. The problem addressed is the need for efficient and reliable switching between multiple antennas to enhance signal quality and reduce interference. Traditional switching mechanisms may suffer from high insertion loss, poor isolation, or slow switching speeds, which degrade performance. The circuitry includes multiple electronic switches that connect different antennas to a receiver or transmitter. At least one of these switches is implemented using a complementary metal-oxide-semiconductor field-effect transistor (CMOS FET) switch. CMOS FET switches are preferred for their low power consumption, high integration density, and fast switching speeds, making them suitable for modern wireless devices. The use of CMOS FET switches in the antenna switch diversity circuitry ensures efficient signal routing with minimal loss and interference, improving overall system performance. The circuitry may also include additional components like filters or amplifiers to further enhance signal quality. This design is particularly useful in mobile devices, IoT applications, and other wireless systems requiring robust and adaptable antenna selection.
15. The antenna switch diversity circuitry of claim 14 , wherein the crossover switch further comprises an inverter configured to cause: both an n-channel metal-oxide-semiconductor field-effect transistor of the complementary metal-oxide-semiconductor field-effect transistor switch and a p-channel metal-oxide-semiconductor field-effect transistor of the complementary metal-oxide-semiconductor field-effect transistor switch to be one of concurrently on or concurrently off; both the first electronic switch and the fourth electronic switch to be on concurrently with both the second electronic switch and the third electronic switch being off; and both the second electronic switch and the third electronic switch to be on concurrently with both the first electronic switch and the fourth electronic switch being off.
The invention relates to antenna switch diversity circuitry used in wireless communication systems to improve signal reception by dynamically selecting between multiple antennas. The problem addressed is the need for efficient and reliable switching between antennas to optimize signal quality while minimizing power consumption and signal loss. The circuitry includes a crossover switch that ensures proper routing of signals between antennas and a receiver or transmitter. The crossover switch comprises a complementary metal-oxide-semiconductor field-effect transistor (CMOS FET) switch with both n-channel (NMOS) and p-channel (PMOS) transistors. An inverter within the crossover switch controls the transistors to ensure they are either both on or both off simultaneously, preventing signal leakage and reducing power loss. The circuitry also includes four electronic switches that are configured to operate in pairs. When the first and fourth switches are on, the second and third switches are off, and vice versa. This alternating switching mechanism ensures that signals are routed correctly between antennas without interference. The design improves signal integrity and reduces power consumption by minimizing unnecessary switching transitions. The invention is particularly useful in mobile devices and other wireless systems requiring efficient antenna diversity.
16. The antenna switch diversity circuitry of claim 1 , wherein the antenna switch diversity circuitry is disposed in a mobile communications device.
The invention relates to antenna switch diversity circuitry used in mobile communications devices to improve signal reception and transmission. The circuitry dynamically selects between multiple antennas to optimize performance based on signal conditions. In mobile devices, signal quality can degrade due to interference, multipath fading, or physical obstructions. The antenna switch diversity circuitry addresses this by monitoring signal strength and quality across multiple antennas and automatically switching to the best-performing antenna. This enhances reliability and data throughput in wireless communications. The circuitry includes switching components, signal processing elements, and control logic to manage antenna selection. It may also integrate with other radio frequency (RF) components in the device, such as amplifiers and filters, to ensure seamless operation. The invention is particularly useful in smartphones, tablets, and other portable devices where maintaining stable wireless connectivity is critical. By dynamically adjusting antenna selection, the circuitry mitigates signal degradation and improves overall communication performance in varying environments.
17. The antenna switch diversity circuitry of claim 16 , wherein: the first antenna is disposed near a first corner of a housing of the mobile communications device; the second antenna is disposed near a second corner of the housing; the third antenna is disposed near a third corner of the housing; and the fourth antenna is disposed near a fourth corner of the housing.
This invention relates to antenna switch diversity circuitry for mobile communications devices, addressing the challenge of optimizing signal reception and transmission across multiple antennas to improve performance in varying environments. The circuitry includes at least four antennas strategically positioned near the four corners of the device's housing to enhance spatial diversity and coverage. Each antenna is selectively connected to a transceiver through a switching mechanism that dynamically routes signals based on signal quality metrics, such as signal strength or interference levels. The system may also incorporate a controller to monitor and adjust antenna selection in real-time, ensuring optimal communication performance. The antennas are designed to operate across different frequency bands, supporting various wireless standards. By distributing the antennas around the device's perimeter, the system mitigates signal degradation caused by obstructions or interference, improving reliability in diverse usage scenarios. The circuitry may further include impedance matching components to optimize signal transmission and reception efficiency. This configuration enhances the device's ability to maintain stable connections in challenging conditions, such as urban areas with high interference or indoor environments with weak signals.
18. The antenna switch diversity circuitry of claim 1 , wherein at least one of: the first switch is connectable to the first transmitter, the first receiver, and the second receiver, or the second switch is connectable to the second transmitter, the third receiver, and the fourth receiver via at least one of a direct connection, a switch, or a duplexer.
Antenna switch diversity circuitry is used in wireless communication systems to improve signal reception and transmission by dynamically selecting the best antenna path. A common challenge is efficiently routing signals between multiple transmitters and receivers while minimizing interference and signal loss. This circuitry includes a first switch and a second switch, each configured to connect to multiple transmitters and receivers. The first switch can be connected to a first transmitter, a first receiver, and a second receiver, while the second switch can be connected to a second transmitter, a third receiver, and a fourth receiver. These connections may be established through direct wiring, additional switches, or duplexers, which combine or separate transmit and receive signals. The design allows for flexible signal routing, enabling the system to optimize performance by selecting the most suitable antenna path based on signal conditions. This improves reliability and efficiency in wireless communication systems, particularly in environments with varying signal strengths or interference.
19. Antenna switch diversity circuitry, comprising: a first switch connectable to a first transmitter, a first receiver, and a second receiver, the first switch configured to be controlled by a first signal; a second switch connectable to a second transmitter, a third receiver, and a fourth receiver, the second switch configured to be controlled by the first signal; a third switch directly connected to the first switch, the second switch, a first antenna, and a second antenna, the third switch configured to be controlled by a second signal; a fourth switch directly connected to the first switch, the second switch, a third antenna, and a fourth antenna, the fourth switch configured to be controlled by a third signal; and a fifth switch directly connected to the first switch, the second switch, a fifth antenna, and a sixth antenna, the fifth switch configured to be controlled by a fourth signal.
Antenna switch diversity circuitry is designed to improve signal reception and transmission in wireless communication systems by dynamically selecting and routing signals between multiple antennas and receivers. The system addresses challenges in maintaining reliable communication links in environments with varying signal conditions, such as interference or multipath fading, by providing flexible antenna selection and switching capabilities. The circuitry includes multiple switches that interconnect transmitters, receivers, and antennas. A first switch connects to a first transmitter and two receivers, controlled by a first signal to route signals between them. A second switch similarly connects a second transmitter and two additional receivers, also controlled by the first signal. These switches feed into a third switch, which directly connects to the first and second switches, as well as a first and second antenna, controlled by a second signal. A fourth switch connects to the first and second switches, a third and fourth antenna, controlled by a third signal. A fifth switch connects to the first and second switches, a fifth and sixth antenna, controlled by a fourth signal. This configuration allows for dynamic selection of antennas and receivers based on signal conditions, optimizing performance by reducing interference and improving signal quality. The system enables efficient use of multiple antennas to enhance communication reliability and throughput.
20. The antenna switch diversity circuitry of claim 19 , wherein the third switch is further directly connected to a seventh antenna.
Antenna switch diversity circuitry is used in wireless communication systems to improve signal reception by dynamically selecting the best antenna from multiple available antennas. A common challenge in such systems is efficiently routing signals between antennas and receivers while minimizing signal loss and complexity. This circuitry includes multiple switches that connect antennas to a receiver, allowing the system to select the optimal antenna based on signal quality. The circuitry may also include additional switches to further enhance flexibility in antenna selection. In one configuration, a third switch is directly connected to a seventh antenna, enabling the system to utilize an additional antenna for improved diversity and coverage. This setup allows the system to dynamically switch between multiple antennas, including the seventh antenna, to optimize signal reception in varying conditions. The direct connection ensures low-loss signal routing, improving overall system performance. The circuitry may also include other switches and antennas, each contributing to the system's ability to adapt to changing signal environments. By incorporating multiple antennas and switches, the system can achieve better signal quality, reliability, and coverage in wireless communication applications.
21. A method for preventing a signal from a first transmitter and a signal from a second transmitter from being conveyed through a same switch, comprising: having the first transmitter connected to a first switch; having the second transmitter connected to a second switch; having the first switch connected to a third switch and to a fourth switch; having the second switch connected to the third switch and to the fourth switch; and controlling the first switch and the second switch in a manner so as to prevent the signal from the first transmitter and the signal from the second transmitter from being conveyed through the same switch, the same switch being the third switch or the fourth switch.
This invention relates to signal routing in communication networks, specifically addressing the problem of preventing signal interference or contention when multiple transmitters share common switching infrastructure. The method ensures that signals from two different transmitters are not simultaneously routed through the same downstream switch, which could lead to collisions, data loss, or performance degradation. The system involves a first transmitter connected to a first switch and a second transmitter connected to a second switch. Both the first and second switches are further connected to a third and a fourth switch. The method controls the first and second switches to prevent signals from both transmitters from being routed through either the third or fourth switch at the same time. This selective routing ensures that only one signal path is active through any given downstream switch, avoiding conflicts. The approach is particularly useful in high-density network environments where multiple transmitters share limited switching resources. By dynamically managing switch connections, the method maintains signal integrity and network efficiency without requiring additional hardware. The solution is scalable and adaptable to various network topologies, ensuring reliable signal transmission in shared infrastructure scenarios.
Unknown
July 14, 2020
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